<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <!-- 有语义的布局标签 -->
  <header>网页的头部</header>
  <nav>网页的导航</nav>
  <footer>网页的底部</footer>
  <aside>网页的侧边栏</aside>
  <section>网页的区块</section>
  <article>网页的文章</article>
</body>
</html>